package cn.tedu.boot41.mapper;

import cn.tedu.boot41.entity.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;

@Mapper
public interface UserMapper {
    @Select("select * from user where username=#{username}")
    User check(String username);
    @Insert("insert into user values(null, #{username},#{password},#{nick},#{age})")
    void insert(User user);
    @Select("select * from user")
    List<User> select();
}
